Corbin burned with oxygen to produce carbon dioxide gas what is the correct chemical reaction
1 answer:
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Answer:
A mixture of 100. mL of 0.1 M HC3H5O3 and 50. mL of NaOH
Explanation:
The pH of a buffer solution is calculated using following relation
Thus the pH of buffer solution will be near to the pKa of the acid used in making the buffer solution.
The pKa value of HC₃H₅O₃ acid is more closer to required pH = 4 than CH₃NH₃⁺ acid.
pKa = -log [Ka]
For HC₃H₅O₃
pKa = 3.1
For CH₃NH₃⁺
pKa = 10.64
pKb = 14-10.64 = 3.36 [Thus the pKb of this acid is also near to required pH value)
A mixture of 100. mL of 0.1 M HC3H5O3 and 50. mL of NaOH
Half of the acid will get neutralized by the given base and thus will result in equal concentration of both the weak acid and the salt making the pH just equal to the pKa value.
The precipitate formed in the reaction has been AgCl. Hence, option B is correct.
The precipitate has been the solid insoluble substance that has been formed as the product in the double displacement reaction.
The precipitate settles down in the aqueous reaction mixture and are resulted from the double displacement reaction.
<h3>Which one is the precipitate?</h3>The reaction of silver nitrate and KCl has been:
The reactants in the reaction are in the aqueous form. Thus, silver nitrate and KCl are aqueous.
The potassium nitrate has been an aqueous solution, while the silver chloride has been the solid product that precipitates out.
Thus, the precipitate formed in the reaction has been AgCl. Hence, option B is correct.
Learn more about precipitate, here: